[jira] [Closed] (FLINK-4265) Add a NoOpOperator

["Greg Hogan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-4265?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Greg Hogan closed FLINK-4265.
-----------------------------
    Resolution: Implemented

Implemented in 66d4b8724b9e9b09225d2bbd3132dc2efdcf843a

> Add a NoOpOperator
> ------------------
>
>                 Key: FLINK-4265
>                 URL: https://issues.apache.org/jira/browse/FLINK-4265
>             Project: Flink
>          Issue Type: New Feature
>          Components: DataSet API
>    Affects Versions: 1.1.0
>            Reporter: Greg Hogan
>            Assignee: Greg Hogan
>            Priority: Minor
>
> One recent feature of Gelly is algorithms which detect duplicated or similar computation which can be shared. My initial implementation could only reuse a {{DataSet}} result. Before committing to Flink this was updated to use a javassist {{ProxyFactory}} allowing configuration to be merged and results to be replaced. There were some issues, as identified in FLINK-4257. With a {{NoOpOperator}} we can remove the use of {{ProxyFactory}} and resolve the identified issues.
> This ticket adds a {{NoOpOperator}} which is unwound in {{OperatorTranslation.translate}}. The {{NoOpOperator}} contains a {{DataSet}} which is accessed by a getter and setter.



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